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Finding the Fourth Proportional to 239,198.54, 358,673.27 and 89,315.60

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Solution

The fourth proportional to 239,198.54, 358,673.27 and 89,315.60 is: 133,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,198.54 : 358,673.27 = 89,315.60 : x
  2. Step 2: Convert to fraction form
    239,198.54/358,673.27 = 89,315.60/x
  3. Step 3: Cross multiply
    239,198.54x = 358,673.27 × 89,315.60
  4. Step 4: Simplify right side
    239,198.54x = 32,035,116,074.07
  5. Step 5: Solve for x
    x = 32,035,116,074.07/239,198.54
  6. Step 6: Final answer
    x = 133,926.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.